EP2897243A4 - Frequency-conversion differential protection method for output transformer of static frequency convertor system - Google Patents
Frequency-conversion differential protection method for output transformer of static frequency convertor systemInfo
- Publication number
- EP2897243A4 EP2897243A4 EP13837802.1A EP13837802A EP2897243A4 EP 2897243 A4 EP2897243 A4 EP 2897243A4 EP 13837802 A EP13837802 A EP 13837802A EP 2897243 A4 EP2897243 A4 EP 2897243A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- frequency
- protection method
- output transformer
- differential protection
- convertor system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 230000003068 static effect Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
- H02H7/045—Differential protection of transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/083—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for three-phase systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/28—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Protection Of Transformers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Control Of Eletrric Generators (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210332624.4A CN103683195B (en) | 2012-09-11 | 2012-09-11 | Frequency-conversiondifferential differential protection method for output transformer of SFC system |
PCT/CN2013/078552 WO2014040448A1 (en) | 2012-09-11 | 2013-07-01 | Frequency-conversion differential protection method for output transformer of static frequency convertor system |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2897243A1 EP2897243A1 (en) | 2015-07-22 |
EP2897243A4 true EP2897243A4 (en) | 2016-05-25 |
EP2897243B1 EP2897243B1 (en) | 2019-02-06 |
Family
ID=50277577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13837802.1A Active EP2897243B1 (en) | 2012-09-11 | 2013-07-01 | Frequency-conversion differential protection method for output transformer of static frequency convertor system |
Country Status (7)
Country | Link |
---|---|
US (1) | US9640981B2 (en) |
EP (1) | EP2897243B1 (en) |
JP (1) | JP6152168B2 (en) |
KR (1) | KR101998916B1 (en) |
CN (1) | CN103683195B (en) |
RU (1) | RU2598903C1 (en) |
WO (1) | WO2014040448A1 (en) |
Families Citing this family (25)
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CN104218543B (en) * | 2013-05-30 | 2016-12-28 | 南京南瑞继保电气有限公司 | Current source type converter differential protecting method |
CN103887768B (en) * | 2014-04-09 | 2016-07-06 | 南京保合太和电力科技有限公司 | Excitation system rectifier bridge differential protecting method and system |
CN104155883B (en) * | 2014-06-12 | 2016-09-14 | 国家电网公司 | A kind of startup control method of pump-storage generator SFC |
CN104124687A (en) * | 2014-08-08 | 2014-10-29 | 南京南瑞继保电气有限公司 | Double-SFC (Static Frequency Converter) system topography structure |
DE102014217300A1 (en) * | 2014-08-29 | 2016-03-03 | Siemens Aktiengesellschaft | Arrangement for connecting a traction power supply for a railway line to a three-phase supply network |
CN105591768B (en) * | 2014-10-21 | 2019-11-29 | 中兴通讯股份有限公司 | Fault detection method and device |
EP3350897A4 (en) * | 2015-09-18 | 2019-08-07 | Schweitzer Engineering Laboratories, Inc. | Time-domain line protection of electric power delivery systems |
CN106569035B (en) * | 2015-10-08 | 2019-02-22 | 南京南瑞继保电气有限公司 | The static frequency changer locking phase detection method of direct voltage compensation |
EP3362805A4 (en) | 2015-10-13 | 2019-06-19 | Schweitzer Engineering Laboratories, Inc. | Electric power system monitoring using high-frequency signals |
CN105514957B (en) * | 2016-01-28 | 2017-12-22 | 南京南瑞继保电气有限公司 | One kind mixing back-to-back DC power transmission system and trend reversion control method |
CN106936111B (en) * | 2017-04-05 | 2019-01-18 | 南京国电南自维美德自动化有限公司 | Hyperbolic system dynamic characteristic differential protecting method based on inflection point tracking |
CN109659902B (en) * | 2017-10-11 | 2020-03-20 | 南京南瑞继保电气有限公司 | Differential protection method and device for water pump starting process of pumped storage power station |
RU2683266C1 (en) * | 2018-01-09 | 2019-03-27 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тюменский индустриальный университет" (ТИУ) | PROTECTION METHOD OF CONVERTING PLANT WITH TRANSFORMER WITH 2n SECONDARY WINDING AND 2n COIL RECTIFIER |
CN108931702B (en) * | 2018-06-05 | 2021-01-26 | 中国大唐集团科学技术研究院有限公司华中分公司 | Method for judging small current test abnormity of excitation system |
US10677834B2 (en) | 2018-09-14 | 2020-06-09 | Schweitzer Engineering Laboratories, Inc. | Distance protection of electric power delivery systems using time domain and frequency domain |
US10641815B2 (en) | 2018-09-27 | 2020-05-05 | Schweitzer Engineering Laboratories, Inc. | Secure distance protection of electric power delivery systems under transient conditions |
CN110380788B (en) * | 2019-07-12 | 2020-12-25 | 中国科学院半导体研究所 | Frequency measuring device based on differential technology and microwave receiver adopting same |
CN111525509B (en) * | 2020-06-01 | 2022-05-03 | 攀钢集团西昌钢钒有限公司 | Rectifier transformer of power system and over-current protection setting method used for rectifier transformer |
CN111751647B (en) * | 2020-06-24 | 2023-08-08 | 深圳供电局有限公司 | Differential flow anomaly detection method |
CN112039019B (en) * | 2020-08-19 | 2022-07-22 | 积成软件有限公司 | Discrimination method for identifying slight fault of transformer |
US11735907B2 (en) | 2021-02-03 | 2023-08-22 | Schweitzer Engineering Laboratories, Inc. | Traveling wave overcurrent protection for electric power delivery systems |
CN113740649A (en) * | 2021-09-03 | 2021-12-03 | 大唐滨州发电有限公司 | Method for verifying differential protection ratio braking coefficient K value of transformer protection device |
CN114264901B (en) * | 2021-12-07 | 2023-08-22 | 广东电网有限责任公司 | Balanced current simulation method and related device for transformer out-of-zone faults |
CN114447883B (en) * | 2021-12-23 | 2024-01-09 | 北京四方继保工程技术有限公司 | Differential protection method for transformer of pumped storage unit |
CN116231589B (en) * | 2022-11-28 | 2023-09-29 | 云南电网有限责任公司昆明供电局 | Current quick-break protection method without matching with motor starting current |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1964149A (en) * | 2006-12-19 | 2007-05-16 | 北京四方继保自动化股份有限公司 | A differential protection method for negative sequence current of large power transformer |
CN102129006A (en) * | 2011-03-01 | 2011-07-20 | 宁波市鄞州供电局 | Method for detecting errors of differential protection secondary connection of microcomputer type transformer |
Family Cites Families (22)
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JPS5834597U (en) * | 1981-08-31 | 1983-03-07 | 株式会社日立製作所 | thyristor starting device |
JPS62244218A (en) * | 1986-04-14 | 1987-10-24 | 株式会社東芝 | Differential relay device for protecting transformer |
JP3447811B2 (en) * | 1994-07-19 | 2003-09-16 | 株式会社日立製作所 | Transformer protection relay system for substation equipment and transformer protection method for substation equipment |
JPH10327530A (en) | 1997-05-23 | 1998-12-08 | Mitsubishi Electric Corp | Ratio-differential relay for protecting transformer |
RU2137277C1 (en) * | 1998-01-08 | 1999-09-10 | Шинкаренко Сергей Михайлович | Device for differential reverse-sequence current filter of three-phase power installation |
RU2176123C1 (en) * | 2000-09-13 | 2001-11-20 | Шинкаренко Сергей Михайлович | Method and device for differential current protection of three-phase transformer |
JP4112930B2 (en) * | 2002-09-04 | 2008-07-02 | 東芝三菱電機産業システム株式会社 | Inverter device |
JP2005073324A (en) * | 2003-08-21 | 2005-03-17 | Tm T & D Kk | Differential relay device for protecting transformer |
JP2005269870A (en) | 2004-03-22 | 2005-09-29 | Mitsubishi Electric Corp | Ratio differential protective device |
DE102006019875B3 (en) | 2006-04-28 | 2007-10-04 | Siemens Ag | Uninterruptible power supply protecting device for magnetic bearing, has rectifier supplying electrical energy to electrical intermediate circuit of static frequency converter during failure of power supply |
US7738221B2 (en) * | 2007-12-07 | 2010-06-15 | Cooper Technologies Company | Transformer inrush current detector |
CN201312282Y (en) * | 2008-11-25 | 2009-09-16 | 上海新华控制技术(集团)有限公司 | Speed changing system of static frequency converter |
CN101430358B (en) * | 2008-12-10 | 2010-12-22 | 河南国网宝泉抽水蓄能有限公司 | Head-machine first water pump behavior full-group start test method for pump storage plant |
CN101483332B (en) * | 2009-02-10 | 2011-01-12 | 国电南瑞科技股份有限公司 | Phase differential protection method for sampling value differential starting |
JP5534753B2 (en) | 2009-09-11 | 2014-07-02 | 株式会社東芝 | Transformer protection system and equipment |
CN101710691B (en) | 2009-09-30 | 2012-07-04 | 中国水电顾问集团华东勘测设计研究院 | Device for eliminating protection dead zone of generator motor and main transformer in pumped storage power station |
CN101976820A (en) | 2010-08-31 | 2011-02-16 | 南京南瑞继保电气有限公司 | Processing method of protection sampling signals of variable-frequency electric motor protection device |
CN101958530A (en) * | 2010-10-26 | 2011-01-26 | 湖北白莲河抽水蓄能有限公司 | Main transformer differential protection CT polarity check method of pumped storage power station |
WO2012113455A1 (en) | 2011-02-25 | 2012-08-30 | Abb Technology Ag | A method for obtaining an instantaneous direct current value, and control device |
CN102983587B (en) * | 2011-09-07 | 2015-01-07 | 台达电子企业管理(上海)有限公司 | Wind power generation system with overspeed protection and operation method thereof |
CN102695343B (en) * | 2012-06-06 | 2014-01-29 | 矽力杰半导体技术(杭州)有限公司 | LED (Light Emitting Diode) driving circuit |
CN104242605B (en) * | 2013-06-07 | 2016-08-10 | 台达电子工业股份有限公司 | Current-sharing busbar |
-
2012
- 2012-09-11 CN CN201210332624.4A patent/CN103683195B/en active Active
-
2013
- 2013-07-01 EP EP13837802.1A patent/EP2897243B1/en active Active
- 2013-07-01 US US14/426,873 patent/US9640981B2/en active Active
- 2013-07-01 JP JP2015530272A patent/JP6152168B2/en active Active
- 2013-07-01 WO PCT/CN2013/078552 patent/WO2014040448A1/en active Application Filing
- 2013-07-01 KR KR1020157006077A patent/KR101998916B1/en active IP Right Grant
- 2013-07-01 RU RU2015112668/07A patent/RU2598903C1/en active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1964149A (en) * | 2006-12-19 | 2007-05-16 | 北京四方继保自动化股份有限公司 | A differential protection method for negative sequence current of large power transformer |
CN102129006A (en) * | 2011-03-01 | 2011-07-20 | 宁波市鄞州供电局 | Method for detecting errors of differential protection secondary connection of microcomputer type transformer |
Non-Patent Citations (2)
Title |
---|
BOGDAN KASZTENNY: "Operate and Restraint Signals of a Transformer Differential Relay", 54TH ANNUAL GEORGIA TECH PROTECTIVE RELAYING CONFERENCE, 5 May 2000 (2000-05-05), XP055117256, Retrieved from the Internet <URL:http://store.gedigitalenergy.com/faq/documents/t35/ger-3992.pdf> [retrieved on 20140509] * |
See also references of WO2014040448A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2897243B1 (en) | 2019-02-06 |
RU2598903C1 (en) | 2016-10-10 |
US20150255978A1 (en) | 2015-09-10 |
CN103683195B (en) | 2016-12-21 |
WO2014040448A1 (en) | 2014-03-20 |
US9640981B2 (en) | 2017-05-02 |
JP6152168B2 (en) | 2017-06-21 |
KR101998916B1 (en) | 2019-07-10 |
CN103683195A (en) | 2014-03-26 |
JP2015529444A (en) | 2015-10-05 |
KR20150054815A (en) | 2015-05-20 |
EP2897243A1 (en) | 2015-07-22 |
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